function _p8(s) {
    const p = (`${Math.random().toString(16)}000000000`).substr(2, 8);
    return s ? `-${p.substr(0, 4)}-${p.substr(4, 4)}` : p;
}
export default function generateGUID(flag, split = '_') {
    return `${flag}${split}${_p8()}`;
}